"A 2-m3 weather balloon is looselyfilled with helium at 1atm (76cm Hg) and at 27C. At an elevation of 20,000ft, the atmospheric pressure is down to 38cm Hg and the helium has expanded, being under no constraint from the confining bag. If the temperature at this elevation is -48 C, the gas volume (in m3) is:"
"A. 3
B. 4
C. 2
D. 2.5
E. 5.3"
B. 4
C. 2
D. 2.5
E. 5.3"
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